Caster.



F. E. THOMPSON.

(FASTER.

APPLICATION FILED MAR. 27, 1912.

1,031,09. Pat ented my 2, 191g.

WITNESSES ATTORNEY FRANK E. THOMPSON, OF SORRY, PENNSYLVANIA, 'ASSIGNOR'10 COREY CAS'IQR COMPANY, OF COREY, PENNSYLVANIAQ, A CORPORATION OFPENNSYLVANIA.

CASTER.

maroon.

Specification of Letters Patent.

Patented Jul 2, 1912.

Application filed March 27, 1912. Serial No. 686,567.

To all whom it may concern:

Be it known that I, FRANK E. Thompson,

a citizen of the United States, residing at (lorry, in the county ofErie and State-of Pennsylvania, have invented certain new and usefulImprovements in Casters, of which the following is a specification,reference being'had to the accompanying drawings.

This invention relates to improvements in casters and particularlyto'the pintle'retaining means of casters of the type now commonly usedin the tubular of metallic bedsteads; and an object of this invention isto provide a caster of the type just mentioned which will be simple inconstruction, cheap in manufacture, requiring a minimum of manufacturingoperations in its assemblage and, therefore, susceptible of rapidproduction in large quantity at small cost,

and efiicient, durable and convenient in op-- oration and use.

In the drawings illustrating the principle of this invention and thebestmode now known to me of applying that principle, Figure l is anelevation and Fig. 2 is a plan of my new caster, and Fig. 3 is a sectionon the line A-----A of Fig. 1.

The caster-wheel a is rotatably mounted in the legs L of the yoke a; andfrom the latter rises the pintle d the upper end of which is formed witha pivot-point 0. Upon this pivot-point e rests a rivet f which fastenstogether the disks g which comprise the top-plate h. The latter isconnected with the base-plate i by the wire-standards j the lower endsof which are anchored in the base-plate 2' and from the upper ends ofwhich curve outwardly and then downwardly the resilient retaining-armsit designed to press frictionally against the inside of the tubularbedstead-leg m. The portions in of the retaining-arms that bearagainstthe bedsteaddeg just described are inclined, which causes thearms to enter the lee more easily and to act with greater retainingefficiency when positioned. The wire-standards engage halt vay down thepintle and thereby term a long hearing which gives suflicient support tothe pintle. At their lower ends these wire standards flare outwardlyfrom the pintle'and there by leave room for the rotation of theprotuberances n which are formed upon the lower portion of the pintleabove the base plate 2', after the pintle has been positioned therein.The protuberanees retain the pintle in place after it has beenpositioned within the wire standard The base plate '5 is formed withslots 0 in which "helower free ends of the spring-retaining arms is arefree to yield.

In l'nanufacturing the hereinabove described taster the number ofoperations is greatly reduced from the number necessary in makingcasters of this type heretofore put upon the market. The centrallydisposed rivet :lorn'ls a hard wear resisting button-like bearing" forthe pintle-point e and saves the top-plate from wear, whereby the lifeof the caster is materially lengthener l.v

The type of caster hereinbefore described is conn'nonly known in thetrade as a point.- bearing caster.

I claim:

l. A pintle-retainer for point-bearing castershaving an arm-carryingmulti-part topplate and a centrally-disposed wear-resisting fasteningdevice which holds the parts of the top-plate in assembled relation andforms a'wear-resisting bearing for the pivot point of the pintle. y

2. A pintle-retainer for point bearing casters having a top-plate; abase-plate; standards which connect said plates and which are formedwith retaining arms the upper portion. of said standards beingsubstantially straight and the lower portion FRANK E. THOMP SON.

Witnesses:

J. R. OALKIN'S, (i. \V. PATTERSON.

